Solar Panel Scanning Control for Adaptive Target Power Tracking

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Solution Overview

Problem

Existing solar charging systems with fixed target power settings for solar panels inefficiently execute scanning processes, leading to reduced power generation efficiency due to unnecessary scanning when environmental conditions are ideal.

Innovation Solution

A scanning control device that dynamically sets target power for solar panels based on real-time power generation information, executing scanning processes only when the difference between target and actual power exceeds a threshold, thereby reducing unnecessary scanning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the scanning process is executed frequently to ensure accurate maximum power point tracking, then the reliability of power generation control is improved, but the overall power generation efficiency deteriorates due to excessive scanning when environmental conditions are stable

Engineering Contradiction:
Improvepower generation control accuracyVSAvoidoverall power generation efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent applies dynamics by making the scanning execution determination adaptive rather than fixed. The control device dynamically adjusts scanning frequency based on environmental condition changes and power generation status, transitioning from static fixed-time scanning to dynamic condition-based scanning. This resolves the contradiction by increasing scanning only when necessary for reliability while maintaining efficiency during stable conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of scanning frequency from a fixed value to a variable parameter that adjusts according to environmental conditions and power generation status. By monitoring temperature changes, solar radiation variations, and power output deviations, the system modifies scanning execution timing to balance reliability requirements with overall efficiency, executing scans only when parameter changes indicate potential maximum power point shifts.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If the target power is set as a fixed value based on standard specifications, then the ease of control is improved, but the adaptability to environmental changes deteriorates, causing unnecessary scanning execution

Engineering Contradiction:
Improvecontrol simplicityVSAvoidenvironmental condition adaptability
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent implements feedback by continuously monitoring actual power generation output and comparing it with expected values based on environmental conditions. The control device uses this feedback to determine whether scanning is necessary, adjusting the target power dynamically rather than relying solely on fixed standard specifications. This maintains control simplicity while improving adaptability through automated environmental response.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent applies preliminary action by pre-establishing the relationship between environmental conditions and expected power generation characteristics. Before executing scanning, the system evaluates whether current conditions warrant scanning based on pre-defined criteria regarding temperature changes, solar radiation variations, and power output deviations. This preliminary evaluation maintains ease of operation while improving environmental adaptability.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach reduces the frequency of scanning processes, enhancing the overall power generation efficiency of solar charging systems by aligning target power with actual environmental conditions.

Implementation Method 1

a solar panel 11, a power generation control unit 14 configured to control power generation of the solar panel

Methodology Applied
Scientific EffectPhotovoltaic effect: Photovoltaic Effect

Data Source

PatentUS20250028345A1Scanning control device
Publication Date: 2025.01.23 TOYOTA JIDOSHA KK
  • US20250028345A1 patent drawing
  • US20250028345A1 patent drawing

AI summary

In a solar module including a solar panel and a power generation control unit, a scanning control device includes an acquisition unit that acquires information on power generation of the solar panel, a setting unit that sets a target power that is a target value of power generated by the solar panel based on information on power generation of the solar panel, and an instruction unit that permits execution of a scanning process by the power generation control unit when a difference between the target power and the power generated by the solar panel is larger than a first threshold value, and prohibits execution of a scanning process by the power generation control unit when the difference is equal to or less than the first threshold value, and the setting unit changes a target power that is set in accordance with a change in information on power generation.